O.K., let's see how good you drag racers are at knowing your sport. I was at the NHRA Arizona Nationals last week-end in the USA and took this movie of a crew member doing "something" on the track. I will give a free racing t-shirt to the first person who can tell me exactly what this man is doing. I know the answer because I asked him! The movie is a little shaky because a fat woman was jumping up and down in the stands behind me! Good luck.